| 沥青路面裂缝密封胶的低温力学行为分析 |
| |
| 引用本文： | 李峰,黄颂昌.沥青路面裂缝密封胶的低温力学行为分析[J].武汉理工大学学报(交通科学与工程版),2014(3):516-519. |
| |
| 作者姓名： | 李峰 黄颂昌 |
| |
| 作者单位： | 交通运输部公路科学研究院道路结构与材料交通行业重点实验室,北京100088 |
| |
| 基金项目： | 国家自然科学基金项目（批准号：51008146）;交通运输部交通建设科技项目（批准号：2011318223410）资助 |
| |
| 摘 要： | 为了研究沥青路面裂缝密封胶的低温力学行为,进行了3种加热型密封胶和1种有机硅密封胶的低温拉伸试验,根据劲度模量-温度行为特征理论分析试验过程的荷载-位移曲线.结果表明,3种加热型密封胶分别处于玻璃体、玻璃化转换区和橡胶体状态,有机硅密封胶表现为虎克弹性体.为保证良好的低温路用性能,加热型密封胶的最低使用温度应大于玻璃化转换温度,有机硅密封胶应具有较大的位移变形能力.
|
| 关 键 词： | 道路工程 裂缝 密封胶 低温拉伸试验 低温力学行为 |
Low-temperature Mechanical Behavior Analysis of Asphalt Pavement Crack Sealants |
| |
| LI Feng,HUANG Songchang.Low-temperature Mechanical Behavior Analysis of Asphalt Pavement Crack Sealants[J].journal of wuhan university of technology(transportation science&engineering),2014(3):516-519. |
| |
| Authors: | LI Feng HUANG Songchang |
| |
| Institution: | (Key Laboratory of Road Structure＆Material ,Research Institute of Highway, Ministry of Transport, Beijing 100088, China) |
| |
| Abstract: | In order to describe low-temperature mechanical behavior of asphalt pavement crack sealants,three hot-applied sealants and one silicone sealant were conducted by bond test,the load-displacement curves of the test were analyzed by stiffness modulus--temperature behavior characteristics theory.The results showed that three hot-applied sealants were in vitreous,glass transition region and rubber body state,respectively.And silicone sealant was Hooke elastomer.In order to ensure good field performance,the lowest temperature in areas where hot-applied sealants applied should higher than its glass transition temperature,and silicone sealant should have good extension performance. |
| |
| Keywords: | road engineering crack sealant low-temperature extension test low-temperature mechanical behavior |
| 本文献已被 维普 等数据库收录！ |
